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// $Id: G4HadronicInteractionRegistry.cc 93882 2015-11-03 08:23:54Z gcosmo $
//
// 23-Jan-2009 V.Ivanchenko make the class to be a singleton
// 17-Aug-2012 V.Ivanchenko added hadronic model factories

#include "G4HadronicInteractionRegistry.hh"
#include "G4HadronicInteraction.hh"

G4ThreadLocal G4HadronicInteractionRegistry* G4HadronicInteractionRegistry::instance = 0;

G4HadronicInteractionRegistry* G4HadronicInteractionRegistry::Instance()
{
  if(!instance) {
    static G4ThreadLocalSingleton<G4HadronicInteractionRegistry> inst;
    instance = inst.Instance();
  }
  return instance;
}

G4HadronicInteractionRegistry::G4HadronicInteractionRegistry()
{
  //std::cout << "G4HadronicInteractionRegistry  " << this << std::endl;
}

G4HadronicInteractionRegistry::~G4HadronicInteractionRegistry()
{
  Clean();
}

void G4HadronicInteractionRegistry::Clean()
{
  size_t nModels = allModels.size();
  //std::cout << "G4HadronicInteractionRegistry::Clean() start " << nModels 
  //	    << " " << this << std::endl;
  for (size_t i=0; i<nModels; ++i) {
    if( allModels[i] ) {
      const char* xxx = (allModels[i]->GetModelName()).c_str();
      G4int len = (allModels[i]->GetModelName()).length();
      len = std::min(len, 9);
      const G4String mname = G4String(xxx, len);
      //std::cout << "G4HadronicInteractionRegistry: delete " << i << "  "
      //		<< allModels[i] << " " << mname 
      //		<< " " << this << std::endl;
      if(mname != "NeutronHP" && mname != "ParticleH") {
	delete allModels[i];
      }
      // std::cout << "done " << this << std::endl;
    }
  }
  allModels.clear();
  //std::cout <<"G4HadronicInteractionRegistry::Clean() is done "<<std::endl; 
}

void 
G4HadronicInteractionRegistry::RegisterMe(G4HadronicInteraction * aModel)
{
  if(!aModel) { return; }
  size_t nModels = allModels.size();
  for (size_t i=0; i<nModels; ++i) {
    if( aModel == allModels[i] ) { return; }
  }
  //G4cout << "Register model <" << aModel->GetModelName() 
  //	 << ">  " << nModels+1 << "  " << aModel << G4endl;
  allModels.push_back(aModel);
}

void 
G4HadronicInteractionRegistry::RemoveMe(G4HadronicInteraction * aModel)
{
  if(!aModel) { return; }
  size_t nModels = allModels.size();
  for (size_t i=0; i<nModels; ++i) {
    if( aModel == allModels[i] ) {
      //std::cout << "DeRegister model <" << aModel 
      //	<< ">  " << i << std::endl;
      allModels[i] = 0;
      return;
    }
  }
}

G4HadronicInteraction* 
G4HadronicInteractionRegistry::FindModel(const G4String& name)
{
  G4HadronicInteraction* model = 0; 

  size_t nModels = allModels.size(); 
  for (size_t i=0; i<nModels; ++i) {
    G4HadronicInteraction* p = allModels[i]; 
    if(p) {
      if (p->GetModelName() == name) { 
	model = p;
	break; 
      }
    }
  }
  return model;
}

std::vector<G4HadronicInteraction*>
G4HadronicInteractionRegistry::FindAllModels(const G4String& name)
{
  std::vector<G4HadronicInteraction*> models;

  size_t nModels = allModels.size(); 
  for (size_t i=0; i<nModels; ++i) {
    G4HadronicInteraction* p = allModels[i]; 
    if(p) {
      if (p->GetModelName() == name) { 
        models.push_back(p);
      }
    }
  }
  return models;
}